Oh my! £90!! That is a hefty price for a lip balm, they are usually the cheapest product in the range! I hope it gives good results, you are lucky to have received that one!
As a member of their "testing" group I got a rose quartz youth defense lip balm plump free but did have o pay postage. The lip balm should have been an astounding £90 + so i am expecting wonderful things!! Nice minty tingly when I put it on but can't say I notice any plumping as yet!!